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发明名称
摘要
申请公布号
JPS6013697(B2)
申请公布日期
1985.04.09
申请号
JP19770089322
申请日期
1977.07.27
申请人
HITACHI LTD
发明人
WATANABE MITSUO;ETANI TAKASHI
分类号
A47L11/16;A47L11/19
主分类号
A47L11/16
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